Friction for shuttles



LMQSQS.

Jan. 2, 1923.

F. H. smsow. FRICTION FOR SHUTTLES.

2 SHEETS SHEET 2.

FILED MAY 25.1921.

' I NVEN TOR.

Patented Jan. 2, 19.

FRANK EST-E1593, m mes eess esvsms ASS QB we" 1- mm & SHUTTLE r rsi vmss Be s, leer e 'Q B Q LAT N QFi H E ISLAND.

- m me m Siemecation.

My invention is an improvement in 'shut s; 'pert w l of h hreading ypefor ef ep e hing'l ms-1 i P ticiilarly edapted for those having athreeddi recting guide plate wliich extends froin the p n pin direei nme he heats chamber, and which terminates at the back in hr ed z teining s dhoq si r those shown in patentsto Snow, ofJune 29, 1920, No. 13 M534,and of February '22, 1921, No. 1,369,306.-

My invention" relates particulerly to .a friction, preferably of felt,fibre or similar t i ut hi h may be 9 eed .1 m tal and which ispreferably renewable.

T s r c n i c'et hs the y rruns under it instead of over it',' andpreferably at the back of the shuttle. block position to hold the yarndown at the back.

Its purpose is not onlyto serve'as'a friction to retard the yarn'es itruns from the b n, ut it a s e es to red the ballooning of the yarn. Inm preferred form of device there is an overhead friction at the back ofthe shuttle .19 1 and a friction underneath 't' front thereof.

I 'find' ha y verhead fr tion an be t n e tly u edin; s ngle Part of, aneye block or threading block made of meet-whi e n n erte entered in a.

suitable recess in a'woodei shlittle'iri a Well .known nannen but I mayuse overheed r on w th' y yr b she ils- In h r wi s Fi o a utt e h t-bredin type f r aut a c 1. 011 thmy P f rre i fo m hutt h tion therein.

Figs. "2, 3, 4 and 5 are views of my preferred form of shuttle block oreye block reinoved from the shuttle and on it larger scale than Fig. 1,being as follows.

Fig. 2 is from the left.

Fig. 3 is from the front.

- r d 'lf n' h hread ng eiii e 'i a Plan w- Fig 6 s a ie rom the ht,part in ectio of "a lightly mo ified the i g block with a different typeof front frictiojn.

l ig. View from the back'of slight medifi eeeej o m f TQ Q ppl ed. t mypreferred form of threeding'blocki showing friction a lied to ash htl midifieol forni o'f tlirfidiihg block. g I y Fig. 9 is a viewfrorn theright of the. threading block with friction of iny pre- .ferred type ina different location.

" Fig. l'O 'is a plan View of a shuttle with no e y e of y thr d, kew nmy fri i n appli d e e Fig. ll is a-view from the back showing myfriction epplied t still another type of threader. 1 i

Fig. 12 is a View from the back of a h d n ble k, ofthe em y Shd i nFig. 10, niy friction in place.

' is a shiittle of the self-threading type fo automa ic om hav n the u uebb chamber lQfor the bobbin froinwhich the thread A is nnwound, and 12is the threading chamber which extends forward in continnation bobbinchamber 10. 13 is the delivery passage which extends still farthgrepresents sh ttle eye in the Wood, and th s onn cts w h the h e d n cem er thro g th l t 15 ut way r ihed liVery'pessage 13. Siepxesentsthemetal ip of th shut l "F eiir 'ini e mstelli t reedi l c which s e n o'a fee n t e we O the huttl nd i h wn e fi e her in by in h bka ell 'knbn h n f- F the pro ection -34 which Fig.8 is a sectional as frond theback- "My device is more particularly useful in connection with acertgiin t'yg'pe of threading block, such as shown Iat'F in: Figs. 1. to9, in which there is a thread directing guide plete G which extends fromthe top thereof and from the topside of the shuttle, down and out at 22into the threading chamber 12, or that part of the threading chamber,indiwith a portion-80 which overlaps the bottom part of the guide hook24. The metalat l5 also, extends upward to a point somewhat outside theguide hook to form a locking guide. There isalso a horn 32 and a frontthread pin33 of well known- "form.

The-special noyelfeat'ure of mydevice is the friction member L, whichextends Into the threading chamber at a point above the 7 lower end ofguide hook 24.- This friction member L is passed through a hole 40 inthe wall of threading block F, and is'shown as extending to and restingagainst the inner i This side ot'guide hook 24;as clearly shown'in Fig.4. i

fibre but may be oi? wood or any other material, even metal, provided itis-in a posit-ion so that the yarn will run under it and,

preferably, provided'it is at the back part proximate the threaddirecting guide hook.

As shown in Fig. 2, I prefer to use another friction below and in frontof plug L,

shown as a similar plug 85 of felt, fibre, or other suitable material,which is passed through a holejBd in block F. The yarn A will thereforepass under friction L and I over friction 85.

As shown in Fig. 6, I mayuse a sloping guide plate 50 having a frontthread trapping rim 52, and a hack thread retaining guide hook 51'at theback, having the usual pin 54- and a horn 53 which has its bottom endslightly cut oil, in connect-ion with an overhead friction 55 at.theback,'similar in all respects to L, but at the front a flat pad 01through which pin 54 passes to hold it in place, Where a verysubstantial drag .or friction is re uired, it can be accomplishedbyusing a to t plug 55 and a fiat felt friction 56, between both ofwhich the yarn A must pass. v

In Fig. 7 I show an eye block 60 having a portion which extends down andover into the threading chamber at 61 and having the usual threadpin'62. Through the having a longitudinal threading chamber,

side wall of the. block is a hole or; and through this hole is passed aheaded pin '63, the end of which also enters a hole 65 in hook 61. Thispin 63 passesthrough a core This threading block,

friction is preferably of felt or felt or other similar material 56 Latces 71 and preferably. above the lower end thereof, and. also passesthrough the wood of the shuttle. v

' In Fig. 9,1 show a block similar in all respects' to that shown inFig. 2 and Fig. 5 exceptthat the hole 79' for overhead friction L isbored through the wall of the eye block at a point which is fartherforward with reference to guide hook 24. The friction L and, hook 24barely touch and, in fact, as shownby the dotted circle 7, the frictionplug L might be located even farther forward, a though I do not considerthis desirable.' i

As shown in Fig. 11, the eye block may have a portion 90 which extendsdown and over into the threading chamber to a much less'degree thanshown in the other views.

and a friction member 92 passed through a hole 93 in a wall9 i in suchposition as to be over the yarn A as it passes through.

around under the guide to the position shown at A in Fig.112 where thefriction will I be in operation and overhead.

It is obvious that my friction may be glued in, position instead ofbeing passed through a hole in the wall of the threading block.

I claim: I

1. The combination with a shuttle threader, having a longitudinalthreading chamber and a thread directing guide plate which'extendsdown'and out from the top into such threading chamber, a threaddirecting guide hook which extends from and under the back part of thethread directing guide plate, and a locking guide which extends into thethreading chamber so as to overlap the guide hook, of a friction memberwhich extends horizontally into the threading chamber in front oftheback edge and above the lower end of said'guide hook tothe inner surfacea thread directing guide plate which extends down and out from the topinto-suchlthreading .lchamoer, and a thread retaining guide hook whichextends from and under the back part of the thread directing guideplate, of

a friction member which extends horizontally into the threading chamberin front of the back edge and above the lower end of said guide hook tothe inner surface of said guide hook.

3. The combination with a shuttle threader,

having a longitudinal threading chamber,

a thread directing guide plate which extends down and out from the topinto said threading chamber, and a thread retaining guide hook whichextends from and under the back part of the thread directing guideplate, of a friction member .whichextends into the threading chamber ata point above the lower end of said guide hook and above the yarn as itunwinds from the bobbin to the lnner surface of said guide hook.

4. In a shuttle, the combination of an eye block having at the back aportion which extends down and over into a threading chamber, with. afriction member which passes through the wall of said eye block at apoint opposite to said portion and above the lower end-thereof to theinner surface of said portion which extends down and over into saidthreading chamber.

5. In a shuttle, the combination of an eye block having a portion whichextends down' and over into a threading chamber, with a friction memberwhich passes through the wall of said eye block at a point above thelower end thereof and above the yarn as it passes through the threadingchamber to the innersurface of said portion which extends down and overinto said threading chamber.

6. In a shuttle of the self-threading type for automatic looms,thecombination of a the bobbin, said friction member extending 'to theinner surface of the said portion which extends down and over into saidthreading chamber.

FRANK H. STETSON.

